October 2016 Projected Temperature Anomalies from NCEP/NCAR Data

Guest Post By Walter Dnes

In continuation of my Temperature Anomaly projections, the following are my October projections, as well as last month’s projections for September, to see how well they fared.

Data Set Projected Actual Delta
HadCRUT4 2016/09 +0.775 +0.714 -0.061
HadCRUT4 2016/10 +0.729
GISS 2016/09 +0.95 +0.91 -0.04
GISS 2016/10 +0.87
UAHv6 2016/09 +0.408 +0.441 +0.033
UAHv6 2016/10 +0.362
RSS 2016/09 +0.493 +0.576 +0.083
RSS 2016/10 +0.376
NCEI 2016/09 +0.9352 +0.8869 -0.0483
NCEI 2016/10 +0.8799

The Data Sources

The latest data can be obtained from the following sources

Miscellaneous Notes

At time of posting, all 5 monthly data sets were available through September 2016. The NCEP/NCAR re-analysis data runs 2 days behind real-time. Therefore, real daily data through October 29th is used, and the 30th and 31st are assumed to have the same anomaly as the 29th.

October’s global NCEP/NCAR monthly anomaly has dropped to near July’s and August’s (2016) levels. October will be the first month since July 2015 that does NOT set a new record high anomaly for that specific calendar month. I.e. August 2015 was the hottest August in NCEP/NCAR data to that time; September 2015 was the hottest September to that time; October 2015 was the hottest October to that time, all the way through September 2016. NCEP/NCAR data goes back to January 1948.

The graph immediately below is a plot of recent NCEP/NCAR daily anomalies, versus 1994-2013 base, similar to Nick Stokes’ web page. The second graph is a monthly version, going back to 1997. The trendlines are as follows…

  • Black – The longest line with a negative slope in the daily graph goes back to mid-to-late July, 2015, as noted in the graph legend. On the monthly graph, it’s August 2015. This is near the start of the El Nino, and nothing to write home about. Reaching back to 2005 or earlier would be a good start.
  • Green – This is the trendline from a local minimum in the slope around late 2004, early 2005. To even BEGIN to work on a “pause back to 2005”, the anomaly has to drop below the green line.
  • Pink – This is the trendline from a local minimum in the slope from mid-2001. Again, the anomaly needs to drop below this line to start working back to a pause to that date.
  • Red – The trendline back to a local minimum in the slope from late 1997. Again, the anomaly needs to drop below this line to start working back to a pause to that date.

NCEP/NCAR Daily Anomalies:
test96

NCEP/NCAR Monthly Anomalies:
test96

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11 thoughts on “October 2016 Projected Temperature Anomalies from NCEP/NCAR Data

  1. The maximum value of the latest El Nino is 0.6°C greater than that for the 1998 El Nino.

    I find my credulity somewhat strained.

    • The maximum value of the latest El Nino is 0.6°C greater than that for the 1998 El Nino.

      No, commieBob. What you should have written is that the maximum NCEP/NCAR anomaly during the latest El Niño is 0.6 °C greater than that during the the 1998 El Niño.

      That’s quite a bit different. A look at the following charts (Multivariate Enso Index, UAH6.0beta5) might convince you.

      Here you see that the ENSO events in 1982/83 and 1997/98 were quite a bit stronger than that of 2015/16.

      The same holds for UAH in the tropical regions in comparison with the Globe.

    • AGREE, no SAT data on 40”s or 30’s, etc. They can only show trends, not precision to a tenth of a degree C

      • Still wish that somebody would grab the NEMS and SCAMS data from the 1970s and extend the record back for a number of years. Yeah, they are not the latest and greatest, but they did give global microwave sounder numbers where we have none.

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